August j



A. 1'. GAENZIG. ADJUSTABLE HAMMER STAND.

APPLICATION man APRA.-13.51911.

Patented Dee. 9,1919.

/ Z @1MM `20 f hard material, and: which is ofza formvvhere- I :by .the hammer maybe 4raised 'and-lowered o L to diiierentlheights, 1in order toallowthe` Work to lbeaccomplished on ceilings of varii" i AUGUSTJQ eannz'raor'naoonnvmnnw YORK., i

l" nJUsrABLnnAMME-srhun ,J.1 GRENZIG,

l acitizen ofthe United S'States,and a resident d to a'n apparatus for use in conjunotionvvith ofNev'v `York loorough'of Brooklynycounty p A of Kings, ami smeer New York, have ventedfa `cer-tain `nevv -andlusef'ul Improve-4 nient .xin- `Adjustable I-Iammer-Stands,v of

which the vfollow-ing isa full, clear, and 'exaotgspeciication." f l. Y "This invention frelatesfmore particularly aA class foffhammer` andfdrilling" tools".

- Myinventionfhasor its-'object primarily to provide a "stand, adaptedftohe employed 'fonpermitting a` hammerl especially of :electrically operative', for pneumatic type toy-be i supportedin a manner Whereloy holes may loe readily drilled, or bolts drivenin part's'fof structures; such as theceilings oa building, when made particularly of concrete and likey ous elevations. r The invention consistsesselr-` tially ofahasewith a tubular standard .proL

l jecting upwardly itherefromyand 'movable inwardly? and outwardly of the upperend-o l u i the standardis atuhular memher.- Adapted v, so

tosloe4 extensiloly `adjusted inwardly and out- V Wardly of the upper `,end of. the standard is i 4anlupright memhenland on this 'upright' `lne-'rrlloen is a bracket `for removably marrying. a hammer sofasfto-be guided inthe radius 35 Other objects of invention"areV topprovide manually: operative" lifting ldevice T1011 elevating the vtubular `rnerrllber :and the upfy right toA various heights; to 4provide are tainer for releaisahlylocking the upright i "when--adjustedin V'the, t'ulogular member; `and .to provide a stand of fasirnjple,l eiliolent and rdurable oonstructionwhichmay he maide in various s1zes. a

. A practical emhodinient the invention isfrepresented in jthej aocompanying drawing forming,2Ll Jpart .of this speclfoatlon. `WJffL'lch similarnharaeters off reference indica-tenor- 51mm@ gaming, Figurefl an elevation "f 'erle' fome @ed-instable Staind emibedyegwy invention showing-thema eifetfitsfuse f summing @hemmen f 'is a tubular `member17.` .l ,i Y t 'The tubular member 1-7 lis-nthewforrrl ofv enlarged fires-mentari? He# tional view,A partly: broken away,` takenfonuthe'jlinelvII-eII of Figq ,li with "the hanmer Lre1no`ved-there@ from. 1 1 Y l D Fig. I3 is an `enlarged `fragment'ary lseotonal view, partly the lower part ofthe stand."` y .n

Fl'g. 4 is' an enlarged top planoflthe bracket us'ed inthe stand for carrying the hangmler. 1

Fig. `5 is a stand@ A i 11`ig.` `6 is an inverted 'plan.ofgthefy pronged Caprandf 'L' `TheV apparatus,V -or stand" size,V and 4this base may-Ehe; mounted on `roll,- rers, as 1l, if desired. VOnf the icentral part olf thetop of the hase is provde'dfan 1interiorlyithreade'd fbossyas l12, in which is screwed the lower eXteriorly'threaded end of.` a tubular standard, :or pipe. 13 of'a length -to extend a suitable distance above thehase,

"peocation of Letters I'atent. l i

`in detail, taken through f Y pronged" cap employed in the has amas@ 101 which `maybe of any suitable shape andV and lengthwise `of :the central'partf'ofthis Astandard is a 'slot 14; t On th'eupperzend 'of "the tubular standard 131 is al capflfhavng 'an' opening 16 :in register *with 'thehlpassage y01:'the' tubular standard, and movable in'-V Wardly and foutvvardlyof Vthe uppereend :off

the standardthrough `the A'opening of its ucap appe :of a length for( being raisedjiand lowel'ed toy'varous heights relative :to :the top of the standard y13, andfon' the lovver.'end-of4 thistuhularmemher' interiorly of the standard fis ak cap' 18 With;depending` prongs, as 19. Transversely through the prongslQare .registeredvorices' 2Q andl 20e,V andthe end @Wall of `the groove'loe'tvv'een these prongs may be beveled on an upv'vaI-clincline,` asiat 2l; On ftheupper end of the tuhlilar'in'emher 17 ,is provided a `sap -22ihavng openiig C lead-ing into ythe passagejof 7the tubular ineinloer, and iextfensiloly Vadjustable' inwardly and 5 :outwardlyof thetu'hular lnemlerl -17 through utsoaip22 1:51311 uprlght memheral: The upmghtrtemher Ais preferahlyzfin upper (and4 may; begelevateil Si rdesiredheight above the-tubular member, and' at spaced-inl the form of-aqrodof aalength iwherebyets Y i' threaded, and onthisthreaded-endis rigidly Y VU-shape togproyide two, spaced farms, 31V and,

l Y 32V projecting'upwardly fromuthe'ends ofther ,tra'nsversearm- 29.1V Betweeiithe arms 31 'and 32 Vislay `clarrqoingelement-:33 preferably in the f l forrn'bf a ringorband34of spring-inetalyand` protruding laterally from .opposlte partsof this ring are short-r studsv 351 a11d`^36 which are journaled in-fthe'upper ends` 0f`the ve1 lv tical arms of thei braeketja305YV softhatthelf' clampingiri'ng `33irnayloeV swung 4in upvvardly` and downwardly directions '1n-the" bracket,VY Part of thering34 ofthe clamping element isf 'split and f these; endsof-the ring are' v'bent' g outwardly ytherefrom yto provide two parallel arranged li1g s,":asf37 and-"38,f adapted tofbe i normallysprung'from eachother by the ten-g v sion' Aof the ',Iring; Zand-f theselugs-may be freleasably locked yto'- eachYV other by -meansfoflaY screw rbolt, as 39', being screwed# through registered threaded vholes intheseA lugsu- @This clamping element serves to'fpermitfari elec'- Atrically.operativa. or .pneumatic'ihammerof Vany well known, or--preferred type;l '4O ,tov V- be removably carried'in-the-bracket fordriv-f ingfbolts5 fordrilling-holesin` placesat high 1 elevations; such. as the cement 'ceiling of a Vbuilding vforffother'.structure;and to mount' the hammer inthe .clamping element the bolt 39 is loosened 1in; the` lugs of `,the spring-ring! f 335 and i this rin'gf .is then guided over 'the nozzle'fportioof the'hammer',Y after` which the bolt tightened y'in the lugsjof :thel ring vrfor removably holding-the ghaminer fthe 1 clamping-element fors being-Tswn bracket V'3QY in desired directionsf heldY :when Vadjustably'raisedffor-loweredjin arranged on the upright member, fand; .fastened to opposite Vpartsv ofthe sleeve-areone of thevends of two chains-'43 -and44 having on' their other rends pins 45 and 46,-v respec-v -'tive1y.l The? sleeve 42 of the retainergflis 65 smaller zin diameterthan, the cap i 22 of 'the leasably flocked against movement when VV the eap of i "scopethereoi '*f :1' `the:tubular?'member 19,'a retainerj41 iss-7pm#Y vided. `The `retainer41 is preferably' made- `with aisleeve, orf ring 42 Awhichis fslidably fters Patentj:/-"- 1I c 5 'f f 21.1V Thejcombinationffwith a supporting-member having n iear'ls1 to removably'js'ecu're altoolthereto', and-means tover'-4 tubular member 17 sofas to rest-upon this cap l' when theupright memberis-Yadjustedinthe -4 tubular lmember,landbyinsertingQthe pins 4 5 and 4 6 through the "apertures 26"ar1'd26fof the Acapl 22andiinto one'fojfn-theforices,25 of .the-upright A iiieniber this lmemberwiththef bracketO-and the'hammer;A 40- will berreas'theworkprogres'ses,"and in order to move -lhehmfnlj @S may be requiredthe 'bracket *3QV with the upright member-124 f and the ai' el e'iimli'iior`15 it c is necessary to :gradually raise the hammer A f tubiilargmember 17 Vare manually oroedippward'V by' Imeans c of 'a lifting ol'evice;`v jj [This lifting device "has a lever-482m the form" i of a b arwith one of its-ends being'lmovably disposed through the 'slot-lflofthe 'standard 13,-' andV the f end fofllthis lever? within the v i' standard li'spivo ted*betweenthefprongs@19Y ,ofjthecapjlSaof theL-tubiilar`inembeiil(by'aY bolt49jfjlieingq passed throughfthe orificesV '2 0 'an opening; inthe levenOnthe secondl'end 1 central part of the .lever wis pivoted; 'at 51,?'to Y .will'then beforcednpwardlyas well "as being `ient yiis'ed at highelevations." L 1.-Y z-: In the iforeg'oing description I have enrc V:bodied vthe preferred Inform-'0finvention, but do not:wislrtoV be understood' asllimiting-v myself thereto, -as .I'ani awarethat-"n aod'iLA 'ications 1 may Ibefniade.. therein withoutl dea vpartingV romftheri principle', orj'sacrifioing 11an y .of 'the` advantages off-thisinvention;

j f In orderto allowthefuprlghtmem er 24,

{helol` at the desired height-bythe operator vfof; the li-ftiiig device',- continuingv to force' the 3 handleOinga {downwarddirection-f InthiS f Amanner fa simple-- eilcient and durable stand c i'siprovided?whereby: an electrically Operative' cr-'pneumatic "hammer maybeijconveil.

therefore'.Igreservevto :myself'thevri ht toY :claiml as V'newf and desirlejf to'- secure @by Let; L

ilo

base, J601 Y 115 j -tically adjust is ad-twl Vsupporting member i The' l combinatlon with; a1

ase, a tool- .125 jdirectlyf above 'said-1 base' and having `means Vreiroluble ablOuta hori'zrcintalr axis to. imv I ably 'secu-re ajtool thereto, and means 'to ver.-Y tically; adjust Ysaid[toolFysupportingmember i s relative-'to saidbas'e tofinitally set the 'tool upright member adjusted in the tubular lio \ engaged with its work, of means to subsequently gradually vertically Imove said tool, l

supporting memberrelative to the base to feed the tool upwardly to its work as the latter progresses. ,wf

3. In a tool stand, abase, a tubular upright standard mounted on the base, atubular member movable inwardly and outwardly of the upper end ofthe standard, an upright member supporting la tool re'- taining means on theupper end thereofand adjustable .inwardly vand outwardly of the feed the tool to its work upper endsof the tubular member to `initially engage theV tool with its work, a. re-

taining Vmeans for releasably holding the member, and a manually operable lifting means for gradually simultaneously elevating the tubular `member and the upright member. relative to the tubular standard to gresses.

4. In a tool stand,

lar member movable inwardly and -outwardly of the upperend of thej standard,

` an upright member adjustable inwardly and Voutwardly of theupper `end of the tubular member to initially engage the tool with its work, a tool retaining means,ja bracket f on the upper end of the upright member" supportingthe tool retaining means, a re- A `taining means for releasably holding the l upright member `adjusted in the tubular Vto feed the tool to its work progresses. j j d i member and a manually operable lever on the standard pivotally connected directly to the tubular member 'for gradually simultaneously elevating the tubular member` and the upright member relative to the standard as the latter pro-V d Va base, tubular up- `right standard mounted on the base, a tubuas the "latter 5. The `combination with a base having an uprightstandard rigidly mounted cen- .tra-lly thereon,a` member freely vertically slidable relative to said standard, means to gradually vertically slide said member, a 4 second member vertically slidable relative n to said first named slidable member and the standard,and means to retain said slidable members 1- in relative adjusted positions, of a tool supporting member upon the upper endof said second slidable member and provided `with means to removably secure a tool thereto 'directly above said standard and both slidable members.

6. A tool stand includin 'a base, anupright tubular standard rigidly mountedy on said base and providedwith a longitudinal.V

elongated slot, a tubular member slidably disposedwithin and projecting beyond the upper end of said standard, a curved link having one end pivotedtosaid standard ad jacent the bottom of said slot, ay hand lever having the other end 0f said link pivoted thereto between the ends thereof, said hand lever extendingthrough said slot into the standard and directly pivotally comiected tothe lower end of said tubular member, l

,a rod slidably disposed within and projecting beyond theupper end of said tubular Vmember, means to retain said rod in slid-` ably adjusted positions relative to the. tubu. lar member, and means carried 4by the up# Y per end of saidrod for removably retaining a tool.

. This specification signed and witnessed 

